/*
 * Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.alibaba.druid.bvt.sql.oracle.block;

import java.util.List;

import org.junit.Assert;

import com.alibaba.druid.sql.OracleTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;

public class OracleBlockTest4 extends OracleTest {
    public void test_0() throws Exception {
        String sql = "DECLARE" +
                "  done  BOOLEAN;" +
                "BEGIN" +
                "  FOR i IN 1..50 LOOP" +
                "    IF done THEN" +
                "       GOTO end_loop;" +
                "    END IF;" +
                "  <<end_loop>>" +
                "  END LOOP;" +
                "END;";

        OracleStatementParser parser = new OracleStatementParser(sql);
        List<SQLStatement> statementList = parser.parseStatementList();
        SQLStatement statement = statementList.get(0);
        print(statementList);

        Assert.assertEquals(1, statementList.size());

        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
        statement.accept(visitor);

        System.out.println("Tables : " + visitor.getTables());
        System.out.println("fields : " + visitor.getColumns());
        System.out.println("conditions : " + visitor.getConditions());
        System.out.println("relationships : " + visitor.getRelationships());
        System.out.println("orderBy : " + visitor.getOrderByColumns());

        Assert.assertEquals(0, visitor.getTables().size());
        Assert.assertEquals(0, visitor.getColumns().size());
    }

    public void test_1() throws Exception {
        String sql = "DECLARE" +
                     "  done  BOOLEAN;" +
                     "BEGIN" +
                     "  FOR i IN REVERSE 1..50 LOOP" +
                     "    IF done THEN" +
                     "       GOTO end_loop;" +
                     "    END IF;" +
                     "  <<end_loop>>" +
                     "  END LOOP;" +
                     "END;";

        OracleStatementParser parser = new OracleStatementParser(sql);
        List<SQLStatement> statementList = parser.parseStatementList();
        SQLStatement statement = statementList.get(0);
        print(statementList);

        Assert.assertEquals(1, statementList.size());
        assertEquals("DECLARE\n" +
                     "\tdone BOOLEAN;\n" +
                     "BEGIN\n" +
                     "\tFOR i IN REVERSE 1..50\n" +
                     "\tLOOP\n" +
                     "\t\tIF done THEN\n" +
                     "\t\t\tGOTO end_loop;\n" +
                     "\t\tEND IF;\n" +
                     "\t\t<<end_loop>>\n" +
                     "\tEND LOOP;\n" +
                     "END;", statement.toString());

        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
        statement.accept(visitor);

        System.out.println("Tables : " + visitor.getTables());
        System.out.println("fields : " + visitor.getColumns());
        System.out.println("conditions : " + visitor.getConditions());
        System.out.println("relationships : " + visitor.getRelationships());
        System.out.println("orderBy : " + visitor.getOrderByColumns());

        Assert.assertEquals(0, visitor.getTables().size());

        Assert.assertEquals(0, visitor.getColumns().size());
    }
}
